SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME

    公开(公告)号:US20240030291A1

    公开(公告)日:2024-01-25

    申请号:US18125512

    申请日:2023-03-23

    Inventor: SUNGMIN KIM

    Abstract: Disclosed are semiconductor devices and their fabrication methods. The semiconductor device comprises a substrate provided with an active pattern, a gate electrode that runs across the active pattern and extends in a first direction, source/drain patterns on the active pattern on opposite sides of the gate electrode, a channel pattern formed of a portion of the active pattern between the source/drain patterns, and a buried layer below the source/drain patterns and the channel pattern. The buried layer includes first segments below the source/drain patterns and a second segment below the channel pattern. The first segments have a first level. The second segment has a second level. The first level is lower than the second level.

    SEMICONDUCTOR DEVICE
    2.
    发明申请

    公开(公告)号:US20210242349A1

    公开(公告)日:2021-08-05

    申请号:US17240616

    申请日:2021-04-26

    Abstract: A semiconductor device includes first active patterns on a PMOSFET section of a logic cell region of a substrate, second active patterns on an NMOSFET section of the logic cell region, third active patterns on a memory cell region of the substrate, fourth active patterns between the third active patterns, and a device isolation layer that fills a plurality of first trenches and a plurality of second trenches. Each of the first trenches is interposed between the first active patterns and between the second active patterns. Each of the second trenches is interposed between the fourth active patterns and between the third and fourth active patterns. Each of the third and fourth active patterns includes first and second semiconductor patterns that are vertically spaced apart from each other. Depths of the second trenches are greater than depths of the first trenches.

    SEMICONDUCTOR DEVICE
    3.
    发明申请

    公开(公告)号:US20200027992A1

    公开(公告)日:2020-01-23

    申请号:US16504960

    申请日:2019-07-08

    Abstract: A semiconductor device includes first active patterns on a PMOSFET section of a logic cell region of a substrate, second active patterns on an NMOSFET section of the logic cell region, third active patterns on a memory cell region of the substrate, fourth active patterns between the third active patterns, and a device isolation layer that fills a plurality of first trenches and a plurality of second trenches. Each of the first trenches is interposed between the first active patterns and between the second active patterns. Each of the second trenches is interposed between the fourth active patterns and between the third and fourth active patterns. Each of the third and fourth active patterns includes first and second semiconductor patterns that are vertically spaced apart from each other. Depths of the second trenches are greater than depths of the first trenches.

    SEMICONDUCTOR DEVICE
    5.
    发明申请

    公开(公告)号:US20210391433A1

    公开(公告)日:2021-12-16

    申请号:US17313638

    申请日:2021-05-06

    Abstract: A semiconductor device includes a first active (e.g., PMOSFET) region and an adjacent second active (e.g., NMOSFET) region on a substrate, a device isolation layer on the substrate and defining a first active pattern on the first active region and a second active pattern on the second active region, a gate electrode crossing the first and second active patterns, a first source/drain pattern and a second source/drain pattern adjacent to a side of the gate electrode, an interlayer insulating layer on the gate electrode, a first active contact penetrating the interlayer insulating layer to connect the first source/drain pattern and a second active contact penetrating the interlayer insulating layer to connect the second source/drain pattern and a buffer layer provided in an upper region of the interlayer insulating layer and interposed between the first active contact and the second active contact, wherein the buffer layer includes a material having etch selectivity with respect to the interlayer insulating layer.

    SEMICONDUCTOR DEVICE
    6.
    发明申请

    公开(公告)号:US20210104612A1

    公开(公告)日:2021-04-08

    申请号:US16874812

    申请日:2020-05-15

    Abstract: A semiconductor device including: a substrate including a first active region; a first active pattern on the first active region; a gate electrode intersecting the first active pattern and extending in a first direction; a first source/drain pattern on the first active pattern, the first source/drain pattern adjacent to the gate electrode; a first interlayer insulating layer covering the gate electrode and the first source/drain pattern; and an active contact penetrating the first interlayer insulating layer to be electrically connected to the first source/drain pattern, wherein the active contact extends in the first direction, wherein a top surface of the active contact includes: a first protrusion; a second protrusion; and a first depression between the first and second protrusions.

    SEMICONDUCTOR DEVICE
    8.
    发明申请

    公开(公告)号:US20180277543A1

    公开(公告)日:2018-09-27

    申请号:US15804307

    申请日:2017-11-06

    Abstract: A semiconductor device includes: channel patterns disposed on a substrate; a pair of source/drain patterns disposed at first and second sides of each of the channel patterns; and a gate electrode disposed around the channel patterns, wherein the gate electrode includes a first recessed top surface between adjacent channel patterns, wherein the channel patterns are spaced apart from the substrate, and wherein the gate electrode is disposed between the substrate and the channel patterns.

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